Etymology:
The word "abrasive" comes from the Latin word "abrasus," which means "scraped off" or "worn away." It is derived from the verb "abradere," which means "to scrape off" or "to rub away."
Meaning:
An abrasive is a substance or material that is used to grind, polish, or smooth surfaces. It is typically hard and sharp, and it is used in a variety of applications, including:
Origin:
Abrasives have been used for centuries to shape and finish stone, metal, and other materials. The earliest known abrasives were natural materials, such as sand and pumice. Later,人工 abrasives, such as emery and corundum, were developed. Today, a wide variety of abrasive materials are available, including synthetic diamonds and cubic boron nitride.
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